/Engine/Source/Runtime/Engine/Public/AnimationRuntime.h
Lerp forFCompactPose. Stores results in PoseA. Performs PoseA = Lerp(PoseA, PoseB, Alpha); on reduced set of bones defined in BoneIndices list.
static void LerpPosesWithBoneIndexList ( [FCompactPose](API\Runtime\Engine\FCompactPose) & PoseA, const [FCompactPose](API\Runtime\Engine\FCompactPose) & PoseB, [FBlendedCurve](API\Runtime\Engine\Animation\FBlendedCurve) & CurveA, const [FBlendedCurve](API\Runtime\Engine\Animation\FBlendedCurve) & CurveB, float Alpha, const [TArray](API\Runtime\Core\Containers\TArray)< [FCompactPoseBoneIndex](API\Runtime\AnimationCore\FCompactPoseBoneIndex) > & BoneIndices )